Hourly Weather | Today Sunday, November 23, 2025
Stamford, Connecticut
2 PM
Cloudy Weather
48°
Feels Like 43°
0
Humidity: 60%
Wind: 10 mph
UV Index: 1
3 PM
Cloudy Weather
48°
Feels Like 43°
0
Humidity: 57%
Wind: 10 mph
UV Index: 0
4 PM
Cloudy Weather
48°
Feels Like 41°
0
Humidity: 62%
Wind: 10 mph
UV Index: 0
5 PM
Cloudy Night
46°
Feels Like 39°
0
Humidity: 67%
Wind: 10 mph
UV Index: 0
6 PM
Cloudy Night
46°
Feels Like 37°
0
Humidity: 69%
Wind: 12 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 34°
0
Humidity: 71%
Wind: 16 mph
UV Index: 0
8 PM
Cloudy Night
43°
Feels Like 32°
0
Humidity: 72%
Wind: 16 mph
UV Index: 0
9 PM
Cloudy Night
43°
Feels Like 32°
0
Humidity: 72%
Wind: 15 mph
UV Index: 0
10 PM
Cloudy Night
43°
Feels Like 32°
0
Humidity: 71%
Wind: 15 mph
UV Index: 0
11 PM
Cloudy Night
43°
Feels Like 32°
0
Humidity: 71%
Wind: 15 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 6.36 µg/m³
  • O3: 0.039 ppm
  • NO2: 4 ppb
  • SO2: 0.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.14 µg/m³
  • PM10: 7.58 µg/m³
  • O3: 0.039 ppm
  • NO2: 4.2 ppb
  • SO2: 1.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.81 µg/m³
  • PM10: 9.53 µg/m³
  • O3: 0.036 ppm
  • NO2: 5.6 ppb
  • SO2: 1.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
33 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.86 µg/m³
  • PM10: 10.92 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.3 ppb
  • SO2: 1.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.2 µg/m³
  • PM10: 11.47 µg/m³
  • O3: 0.029 ppm
  • NO2: 8.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.66 µg/m³
  • PM10: 10.89 µg/m³
  • O3: 0.028 ppm
  • NO2: 9.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
28 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.84 µg/m³
  • PM10: 9.94 µg/m³
  • O3: 0.027 ppm
  • NO2: 9.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.25 µg/m³
  • PM10: 9.37 µg/m³
  • O3: 0.027 ppm
  • NO2: 9.4 ppb
  • SO2: 1 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
25 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.97 µg/m³
  • PM10: 9.17 µg/m³
  • O3: 0.026 ppm
  • NO2: 9.6 ppb
  • SO2: 1 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.74 µg/m³
  • PM10: 8.91 µg/m³
  • O3: 0.026 ppm
  • NO2: 9.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.